Mixing drum



Dec. 3, 1 I A w CUTLER 2,223,443

' MIXING DRUM Filed Oct. 20, 1957 2 Sheets-Sheet 1 /O//Q W aZZer,

f igadw ATTORNEY- Dec. 3, 1940. A. w. CUTLE R MIXING DRUM Filed Oct; 20,1937 2 Sheets-Sheet 2 ATTO RN EY.

' partment 28 with a receiving chute .40 which ex mounted upon a fulcrumM fixed to a sector l 5 Patented Dec. 3, 1940 t r TES ATENT 'GFFECllHXING DRUM Andy W. Cutler, St. Joseph, Mo. Application October 20,1937, Serial No. 170,044

. l Claims. (Cl; 259-164) My invention relates to mixing drums which torender the blades more effective in agitating may be employed toadvantage'in mixing various and mixing the substances. The blade ends itmaterials, such, for instance, as those employed adjoin the partition 32and are arranged in paral-- for raising depressions in concrete highwaysto lelism with the axis of the drum to prevent them their original levelby being forced intosuch defrom forcing the mixture into the secondcompressions through holes out in the concrete slab. partment 30 throughthe opening 3 prematurely. The mixing device is preferably renderedport- The parallel ends 48 are assisted in retaining the able bymounting it upon a traveling truck carrymixture in the first compartment23 by means of ing appropriate equipment for forcing the plastic aninclined deflector chute 56 having its upper mixture into thedepressions as the plastic mixend extending into the second compartment363 10 ture is discharged from the mixing'drum. and its lower endprojecting into the first com- In order that the invention may be fullyunderpartment 28, so that any part of the mixture carstood, referencewill now be had to the accomried upby the blades 46 will fall upon saidde- UNITED panying drawings, in which fiector chute 50 and be dischargedthereby away Fig. 1 is a side elevation of the machine. from the opening34. I 15 Fig. 2 is a broken vertical longitudinal section After themixing operation has continued in of the mixing drum and associatedparts. the compartment 28 a sufficient period the plastic Referring indetail to the different parts, 2 mixture is transferred to compartment3E! with a designates a suitable traveling truck provided transfer chute52 connected at its upper end to with oppositely-disposed antifrictionrollers 4 the upper part of the deflector chute 5t from upon which themixing drum 6 is rotatably which it inclines in the opposite directionso that mounted. The mixing drum 6 is reinforced with when the chutes 50and 52 are moved backward bands 8 which travel upon the rollers 4 and tothe dotted line position, Fig. 2, the mixture cooperate with the flanges5 of the latter in'recarried upward by the blades 46 will fall uponstraining the drum from longitudinal movement. the chute 52 and bedirected thereby into the Flanged rollers 9, engaging the bands 8,coopercompartment 39 where the substances are furate with the rollers 4in holding the drum 6 in ther mixed by spiral-like blades 53 similar inplace. The mixing drum 5 is driven by an exshape and function to theblades 4%.

ternal ring gear l2 fixed thereon and intermesh The chutes 55 and 52 arefixed to a carrier 56 3o ing with a pinion M fixed upon a shaft 16 pro-'comprising a pair of bars 56 which extend longivided at its forward endwith a pulley l8 driven tudinally through the openings in the drum 6 andfrom a pulley 20 by means of an endless belt 22. are pivotally connectedat their rear ends to the The drive pulley 29 is fixed upon a shaft 25which lower ends of hangers 58, the upper ends of which may be connectedby any suitable clutch means are mounted upon a shaft 6!! carried by aframe F to the shaft of an engine 26 mounted upon the 62 fixed upon thetruck 2. The forward ends of forward portion of the truck 2. the bars 56arepivotally connected to the lower Referring now more particularly toFig. 2 it ends of a pair of hangers 64 fixed at their upper will be seenthat the interior of the drum 6 is ends upon an inner shaft t6 mountedin bearings divided into compartments 28 and 30 by a parti- 51 at upperforward portion of the frame B2 The tion 32 having a central opening 34in axial alineshaft 65 is provided at one end with a fixed crank mentwith openings 3% and 38 in the respective 58' pivotally secured at itsfree end to the upper ends of the drum. Dirt taken from the roadside,end of a connecting-rod Ill which is pivotally s or adjacent territory,is fed into the first comcured at its lower end to a hand-lever l2freely tends through the opening 38. To provide a batch mounted upon thetruck 2. With the foregoing of plastic mixture water is added from atank 42 arrangement it is apparent that when the handhaving a valvecontrolled discharge pipe 44 exlever 12 is in the position shown by Fig.1, the tending into the first compartment 28 through chutes 58 and 52will be held in the full line posithe opening 36. A suitable number ofspiral-like tion shown by Fig. 2, and when said hand-lever blades 453are fixed within the first compartment 72 is swung to the left, Fig. 1,the chutes 5E! and 28 to thoroughly mix the substances therein and 52will be moved to the dotted line position, Fig. 2. move the mixturetowards the opening 34 in the While the substances are being further,mixed partition 32, Each alternate blade 46 is spaced inthe compartment3!] they are prevented by the 55 inwardly from the inner surface of thedrum 6 parallel ends 55 of the blades 53 and a deflector 55 chute itfrom being carried outward prematurely through the opening 38. As shownby Fig. 2 the parallel ends 55 of the blades 53 adjoin the discharge endof the drum. The chute H5 is some- What like the chute 56 but arrangedto operate independently of the latter. As shown by Fig. 2, the chute i6inclines downwardly from the outside to the inside of the compartment 3&and is attached at its upper end to a tiltable discharge chute l3operably connected at its lower end by a hinge (it to a mud hopper 82secured to the frame 62 at a point below and outside of the opening 3.8.The chute 16 is further connected to the h partments, a chute fortransferring a mixture discharge chute 18 by one or more braces 84.

The tilting action of the discharge chute 18 i is controlled by a pairof links 85 having pin-andslot connections 88 with the upper end of saiddischarge chute l8 and fixed at their upper ends to an outer or tubularshaft 90 freely mounted upon the inner shaft Eii and provided at one endwith a fixed crank 93, Fig 1, pivotally secured at its free end to aconnecting rod 94 pivoted at its lower end to a hand-lever 96 which maybe freely mounted upon the fulcrum M or another one in axial alinementtherewith. The foregoing arrangement of the hand-levers l2 and 96 placesthem close together and within easy reach ofthe operator. From theforegoing it is obvious that when the hand-lever 96 is in the positionshown by Fig. 1, the chute 76 will occupy the active position disclosedby Fig. 2, but when said hand-lever S6 is shifted to the left" thedischarge chute '18 will be swung to an inclined position with its upperend Within the opening 38 to receive the plastic mixture in order todischarge it into the hopper 82.

As the batch is discharged into hopper 82 it gravitates into one or morebarrels 93, from which it is forced to the point of use by plungers I08through pipes I05, valves Hi2, a manifold HM, and a hose Hi6.

Briefly the operation is as follows: Soil thrown into chute 40 is fedthereby into the first compartment 28 of drum 6 into which water isadmitted from the tank 42 through the valve-controlled pipe i i. Afterpartially mixing the soil and water the mixture is transferred to thesecond compartment 3i? by shifting the chutes 50 and 52 to the dottedline position, Fig. 2, which operation is accomplished by shifting lever72 to the left, Fig. 1. On completion of the mixing operation incompartment 30, lever 96 is shifted to the left, Fig. 1, to swing theupper end of discharge chute it into the compartment 30. The chute '18then discharges the mixture into hopper 82 from which it gravitates intothe barrels 98. The plungers I03 force the mixture outwardly throughpipes Hit, valves I02, manifold Hi4, and hose HIS the free end of whichis inserted in a hole cut through a depression in the concrete beneathwhich the mixture is forced until the depressed portion of the concreteis raised to its original level.

From the foregoing description taken in connection with the drawings itis apparent that I vhave provided a mixing drum well adapted for thepurpose intended, and while I have shown one form of the invention Ireserve all rights to such other forms andmodifications thereofasproperly fall within the spirit and scope of the invention as claimed.

Having thus described my invention, What I claim and desire to secure byLetters Patent is:

'1. In a machine of the character described, a rotary mixing drum havinginlet and discharge openings and divided into a plurality ofcompartments, a chute for transferring a mixture from one compartment toanother, a carrier extending longitudinally through the drum and towhich said chute is fixed, and means arranged exteriorly of the drum forshifting said carrier longitudinally to alternately carry the chute toac tive and inactive positions.

2. In a machine of the character described, a

rotary mixing drum having inlet and discharge openings and divided intoa plurality of comfrom one compartment to another, a carrier extendinglongitudinally through the drum and; to which said chute is fixed, aframe associated with the mixing drum, shafts supported by said frame,hangers depending from one of said shafts and operably connected to oneend of the carrier, hangers fixed to the other shaft and operablyconnected to the other end of the carrier, a crank fixed to thelast-mentioned shaft to rock the same and thereby effect the movement ofthe chute to active and inactive positions, and manually controlledmeans for actuating said crank,

3. In a machine of the character described, a rotary mixing drum havinginlet and discharge openings, a partition having an opening and dividingsaid drum into a receiving and mixing compartment and a mixing anddeliverycompartment, spiral-like'blades in the interior of the firstcompartment adapted to mix substances and feed the mixture towards thepartition, said bladeshaving ends adjoining the partition and arrangedin parallelism with the axis of the drum to avoid discharging themixture into'the second compartment, an inclined deflector chutearranged to partially enter the second compartment through the openingin the partition and,

to the second compartment, means for shifting the deflector and deliverychutes so that the upper portion of either may be positioned in thepartition opening, and blades in the second compartment adapted to feedthe mixture towards the discharge opening of the drum.

4. In a machine of the character described, a rotary mixing drum havinginlet and discharge openings, spiral-like blades mounted in said drumand adapted to mix substances and feed the mixture towards the dischargeopening, said blades having parallel ends adjoining the end of the drumwith the discharge opening and arranged in parallelism with the axis ofthe drum to avoid discharging the mixture through the discharge opening,an inclined deflector chute in the drum arranged to partially enter thedischarge opening and coact with the parallel ends of the blades inretaining the mixture in the drum, a discharge chute mounted adjacent tothe discharge opening and adapted to be inclined until its upper endenters the discharge opening to receive the mixture and discharge itfrom the drum, and independent means for shifting the chutes to activeand inactive positions.

ANDY W. CUTLER.

